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Security Advisory - Input Validation Vulnerability in Multiple Huawei Products

  • SA No:huawei-sa-20160427-01-dns
  • Initial Release Date: Apr 27, 2016
  • Last Release Date: Apr 19, 2017

There is an input validation vulnerability in Multiple Huawei products, when the debug switch on the device is enabled, an attacker with network access may exploit this vulnerability by crafting malformed DNS packets and sending them to the target device. As for the lacking of input validation, an exploit could allow the attacker to cause a denial of service or remote code execution. (Vulnerability ID: HWPSIRT-2015-12046)

 

This vulnerability has been assigned Common Vulnerabilities and Exposures (CVE) ID: CVE-2016-4087.

 

Huawei has released software updates to fix these vulnerabilities. This advisory is available at the following link:

http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20160427-01-dns-en

Product Name

Affected Version

Resolved Product and Version

S12700

V200R005C00SPC300

Upgrade to V200R008C00SPC500

S2700

V100R006C05

V100R006SPH026

S3700

V100R006C05

V100R006SPH026

S5700

V200R001C00

Upgrade to V200R005SPH010

V200R002C00SPC100

V200R003C00SPC300

V200R005C00

V200R005SPH010

S6700

V200R001C00

V200R005SPH010

V200R002C00

V200R005C00

V200R005C01

V200R005C02

S7700

V200R001C00

Upgrade to V200R008C00SPC500

V200R002C00

V200R003C00

V200R005C00

S9700

V200R001C00

Upgrade to V200R008C00SPC500

V200R002C00

V200R003C00

V200R005C00

An exploit could allow the attacker to cause a denial of service or remote code execution.

The vulnerability classification has been performed by using the CVSSv2 scoring system (http://www.first.org/cvss/).

Base Score: 5.1 (AV:N/AC:H/Au:N/C:P/I:P/A:P)

Temporal Score: 4.2 (E:F/RL:O/RC:C)

1. Prerequisite:

The debug switch on the target device is enabled and the attacker gains access to the device network;

2. Attacking procedure:

An attacker crafts malformed DNS packets and sends them to the target device. An exploit could allow the attacker to cause a denial of service or remote code execution.

Customers should contact Huawei TAC (Huawei Technical Assistance Center) to request the upgrades. For TAC contact information, please refer to Huawei worldwide website at http://www.huawei.com/en/psirt/report-vulnerabilities.

This vulnerability was discovered by Huawei internal tester.

2017-04-19 V1.1 UPDATED Updated the "Software Versions and Fixes" section;

2016-04-27 V1.0 INITIAL

Huawei adheres to protecting the ultimate interests of users with best efforts and the principle of responsible disclosure and deal with product security issues through our response mechanism.

To enjoy Huawei PSIRT services and obtain Huawei product vulnerability information, please visit http://www.huawei.com/en/psirt.

To report a security vulnerability in Huawei products and solutions, please send it to PSIRT@huawei.com. For details, please visit http://www.huawei.com/en/psirt/report-vulnerabilities.

This document is provided on an "AS IS" basis and does not imply any kind of guarantee or warranty, either express or implied, including the warranties of merchantability or fitness for a particular purpose. In no event shall Huawei or any of its directly or indirectly controlled subsidiaries or its suppliers be liable for any damages whatsoever including direct, indirect, incidental, consequential, loss of business profits or special damages. Your use of the document, by whatsoever means, will be totally at your own risk. Huawei is entitled to amend or update this document from time to time.